2024/25 Algebra 1
examination [questions
and solved answers]A+
Which function represents exponential growth? - ANSWERS-f(x) = 3^x
Which function represents exponential decay? - ANSWERS-f(x) = 4(2/3)^x
The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) +
0.8 where f(0) = 2.5. Which statement describes the sequence of numbers generated by the
function? - ANSWERS-The depth of snow was 2.5 inches when the storm began, and increased
by 0.8 inches each hour.
Last week, Lindsay earned $10 per hour plus a $60 bonus for good job performance. She spends
of her paycheck on dinner with friends. If she had not earned the bonus, the amount she spent
on dinner would have been of her paycheck. Which equation can be used to find h, the number
of hours Lindsay worked last week? - ANSWERS-1/15(10h + 60) = 1/10(10h)
Analyze the graph of the function f(x) to complete the statement. - ANSWERS-F(x) < 0 over the
intervals (-∞, -3) and (-1.1,0.9)
According to the table, which ordered pair is a local minimum of the function, f(x)? - ANSWERS-
(2, -15)
, Which equation represents the graphed function? - ANSWERS-y = 1/4x - 2
Which linear inequality is represented by the graph? - ANSWERS-y < −2x + 3
Which is the graph of f(x) = 2(3)x? - ANSWERS-the first one
After 1 year, a bank account contains $7,746.90. After 2 years, the same account contains
$7,901.84. Assuming no deposits or withdrawals are made, which equation can be used to find
y, the amount of money in the account after x years? (Round money values to the nearest
penny.) - ANSWERS-y = 7595(1.02)x
//
Which statements are true about the graph of the system of linear inequalities? Check all that
apply.
y > 3x - 4
y < 1/2x + 1 - ANSWERS-The graph of y > 3x − 4 has shading above a dashed line.
The graph of y > 3x − 4 has shading above a dashed line.
Karl rides his bicycle 120 feet in 10 seconds. How many feet does he ride in 1 minute? -
ANSWERS-720 ft
Hiroshi spends 30 minutes on history homework, 60 minutes on English homework, and x
minutes on math homework. One fourth of his total homework time is spent on math. Which
equation can be used to find the amount of time Hiroshi spends on his math homework? -
ANSWERS-1/4(x + 30 + 60) = x
examination [questions
and solved answers]A+
Which function represents exponential growth? - ANSWERS-f(x) = 3^x
Which function represents exponential decay? - ANSWERS-f(x) = 4(2/3)^x
The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) +
0.8 where f(0) = 2.5. Which statement describes the sequence of numbers generated by the
function? - ANSWERS-The depth of snow was 2.5 inches when the storm began, and increased
by 0.8 inches each hour.
Last week, Lindsay earned $10 per hour plus a $60 bonus for good job performance. She spends
of her paycheck on dinner with friends. If she had not earned the bonus, the amount she spent
on dinner would have been of her paycheck. Which equation can be used to find h, the number
of hours Lindsay worked last week? - ANSWERS-1/15(10h + 60) = 1/10(10h)
Analyze the graph of the function f(x) to complete the statement. - ANSWERS-F(x) < 0 over the
intervals (-∞, -3) and (-1.1,0.9)
According to the table, which ordered pair is a local minimum of the function, f(x)? - ANSWERS-
(2, -15)
, Which equation represents the graphed function? - ANSWERS-y = 1/4x - 2
Which linear inequality is represented by the graph? - ANSWERS-y < −2x + 3
Which is the graph of f(x) = 2(3)x? - ANSWERS-the first one
After 1 year, a bank account contains $7,746.90. After 2 years, the same account contains
$7,901.84. Assuming no deposits or withdrawals are made, which equation can be used to find
y, the amount of money in the account after x years? (Round money values to the nearest
penny.) - ANSWERS-y = 7595(1.02)x
//
Which statements are true about the graph of the system of linear inequalities? Check all that
apply.
y > 3x - 4
y < 1/2x + 1 - ANSWERS-The graph of y > 3x − 4 has shading above a dashed line.
The graph of y > 3x − 4 has shading above a dashed line.
Karl rides his bicycle 120 feet in 10 seconds. How many feet does he ride in 1 minute? -
ANSWERS-720 ft
Hiroshi spends 30 minutes on history homework, 60 minutes on English homework, and x
minutes on math homework. One fourth of his total homework time is spent on math. Which
equation can be used to find the amount of time Hiroshi spends on his math homework? -
ANSWERS-1/4(x + 30 + 60) = x
