Math 1 Semester 1 Final Exam Review Frequently Tested Actual Questions With Correct Answers

MATH 1 EOC REVIEW NC UPDATED ACTUAL
QUESTIONS WITH CORRECT ANSWERS

Question 1.
Factoring a quadratic (the first step is . . .)

ANSWER
i. Find the GCF
ii. GCF ("leftovers")



Question 2.
"zeros of the function"

ANSWER
Same as x- intercepts, roots, solutions to equations




Question 3.
"Golden Rule" when solving Inequalities

ANSWER
If you multiply or divide both sides on inequality by a NEGATIVE number, FLIP the inequality
sign around!!



Question 4.
When is it best to use your graphing calculator to solve a system?

ANSWER
When both equations are in slope-intercept form






,Question 5.
Line of best fit

ANSWER
Also called "regression line", "linear model", "prediction equation", or "trend line".
Use calculator to find
STAT, edit, input L1 and L2,
Stat, -> CALC,
#4 LinReg




Question 6.
Quadratics in flight

ANSWER
vertex = maximum height
x-intercept = when it hits the ground or how long it was in the air y-intercept = starting height




Question 7.
y-intercepts

ANSWER
i. Y intercept: (0. #)
ii. let x = 0, then solve for y






, Question 8.
What is true about the slopes of perpendicular lines? Their y-intercepts?

ANSWER
Perpendicular lines have slopes that are both opposite and reciprocal and can have the same
or different
y-intercepts



Question 9.
Translations-vertical shifts

ANSWER
i. Adding positive # on the end moves graph up
ii. adding negative number moves graph down




Question 10.
How do you tell if a parabola opens up/down?

ANSWER
i. If "a" is positive: opens up.
ii. If "a" is negative: opens down.




Question 11.
y=mx+b

ANSWER
Equation for a line: m= slope and b= y-intercept