math finals (all chapters) UPDATED
ACTUAL Questions and CORRECT
Answers
adding polynomials: (-7x^5+14-2x) + (10x^4+7x+5x^5 - CORRECT ANSWER - −2x^5 +
10x ^4 + 5x + 14
graphing inequalities: y≥x^2-6x+13 - CORRECT ANSWER - check with desmos
what is the y-intercept for the line x+2y=8 - CORRECT ANSWER -4
√125a + √5a - √9b - CORRECT ANSWER - 6√5a - 3√b
adding polynomials: (y^3 − 7x^4 y ^4 ) + (−10x^4 y^3 + 6y^3 + 4x ^4 y^ 4 ) − (x^ 4 y ^3 + 6x^
4 y^ 4 ) - CORRECT ANSWER - −9x^4 y^4 − 11x^4 y^3 + 7y^3
1/2x + 1/3y = -4; 1/5x + 1/5y = -2 (solve using elimination) - CORRECT ANSWER - (-4,-
6)
simplify (√6 - 4)^2 - CORRECT ANSWER - -8√6 + 22
simplify in standard form then classify using degree and # of terms: (7x^2 + 3)(4x^2 - 2x - 1) -
CORRECT ANSWER - 28x^4 - 14x^3 + 5x^2 -6x -3 (quartic polynomial with 5 terms)
solve 2(x+7) - 4 = 5(x+2) -3x - CORRECT ANSWER - all real numbers
Your teacher is giving you a test worth 100 points containing 40 questions. There are two-point
and four-point questions on the test. How many of each type of question are on the test? write a
system of equations and solve - CORRECT ANSWER - 30 two point, 10 four point
, a rate of change must be positive, true or false? - CORRECT ANSWER - false, a rate of
change only has to be consistent
a right triangle has the angles ABC, where angle C is right. The length of AB is 7, and angle B is
42°, find the value of BC and AC (round to the nearest hundredth) - CORRECT
ANSWER - 5.20 and 4.68
graph the equation using the intercepts method: 8x - 10y= 40 - CORRECT ANSWER -
check with people around you (im so sorry i cant put photos in)
find the slope of a line passing through (-3,-2) and (4,5) - CORRECT ANSWER - m=1
write in point slope form: m=3; (-2,5) - CORRECT ANSWER - y-5 = 3(x+2)
write an equation for a line that is perpendicular to the given line and passes through the given
point; y=-6x-2, (0,-12) - CORRECT ANSWER - y = 1/6x -12
if a line is totally horizontal what is the slope? - CORRECT ANSWER - m=0
if a line is totally vertical what is the slope - CORRECT ANSWER - undefined
multiply: x^2 - 25 (over) x^2 -4x ÷ x^2 + x -20 (over) x^2 + 10x + 25 - CORRECT
ANSWER - x-5/x
2/7 ÷ 18/8x^2 - CORRECT ANSWER - 8x^2/63
6p+27 (over) 18p^2 + 36p ÷ 16p + 72/2p+4 - CORRECT ANSWER - 1/24p
ACTUAL Questions and CORRECT
Answers
adding polynomials: (-7x^5+14-2x) + (10x^4+7x+5x^5 - CORRECT ANSWER - −2x^5 +
10x ^4 + 5x + 14
graphing inequalities: y≥x^2-6x+13 - CORRECT ANSWER - check with desmos
what is the y-intercept for the line x+2y=8 - CORRECT ANSWER -4
√125a + √5a - √9b - CORRECT ANSWER - 6√5a - 3√b
adding polynomials: (y^3 − 7x^4 y ^4 ) + (−10x^4 y^3 + 6y^3 + 4x ^4 y^ 4 ) − (x^ 4 y ^3 + 6x^
4 y^ 4 ) - CORRECT ANSWER - −9x^4 y^4 − 11x^4 y^3 + 7y^3
1/2x + 1/3y = -4; 1/5x + 1/5y = -2 (solve using elimination) - CORRECT ANSWER - (-4,-
6)
simplify (√6 - 4)^2 - CORRECT ANSWER - -8√6 + 22
simplify in standard form then classify using degree and # of terms: (7x^2 + 3)(4x^2 - 2x - 1) -
CORRECT ANSWER - 28x^4 - 14x^3 + 5x^2 -6x -3 (quartic polynomial with 5 terms)
solve 2(x+7) - 4 = 5(x+2) -3x - CORRECT ANSWER - all real numbers
Your teacher is giving you a test worth 100 points containing 40 questions. There are two-point
and four-point questions on the test. How many of each type of question are on the test? write a
system of equations and solve - CORRECT ANSWER - 30 two point, 10 four point
, a rate of change must be positive, true or false? - CORRECT ANSWER - false, a rate of
change only has to be consistent
a right triangle has the angles ABC, where angle C is right. The length of AB is 7, and angle B is
42°, find the value of BC and AC (round to the nearest hundredth) - CORRECT
ANSWER - 5.20 and 4.68
graph the equation using the intercepts method: 8x - 10y= 40 - CORRECT ANSWER -
check with people around you (im so sorry i cant put photos in)
find the slope of a line passing through (-3,-2) and (4,5) - CORRECT ANSWER - m=1
write in point slope form: m=3; (-2,5) - CORRECT ANSWER - y-5 = 3(x+2)
write an equation for a line that is perpendicular to the given line and passes through the given
point; y=-6x-2, (0,-12) - CORRECT ANSWER - y = 1/6x -12
if a line is totally horizontal what is the slope? - CORRECT ANSWER - m=0
if a line is totally vertical what is the slope - CORRECT ANSWER - undefined
multiply: x^2 - 25 (over) x^2 -4x ÷ x^2 + x -20 (over) x^2 + 10x + 25 - CORRECT
ANSWER - x-5/x
2/7 ÷ 18/8x^2 - CORRECT ANSWER - 8x^2/63
6p+27 (over) 18p^2 + 36p ÷ 16p + 72/2p+4 - CORRECT ANSWER - 1/24p
