Take this Quiz: SAT Math — rearranging equations and recognising the same line | Zestly

Question 1

What is the slope of the line $3x + 4y = 12$?

Accepted Answer

$-\frac{3}{4}$

Answer

$\frac{3}{4}$

Answer

$3$

Answer

$-\frac{4}{3}$

Question 2

A line is given by $5x - 2y = 10$. What is the value of $y$ when $x = 4$?

Accepted Answer

$5$

Answer

$-5$

Answer

$10$

Answer

$30$

Question 3

At what point does the line $2x + 5y = 20$ cross the $y$-axis?

Accepted Answer

$(0, 4)$

Answer

$(0, 20)$

Answer

$(10, 0)$

Answer

$(0, 2)$

Question 4

A courier's total charge $C$ in dollars for a delivery is given by $C = 5d + 10$, where $d$ is the distance in miles. Which expression gives $d$ in terms of $C$?

Answer

$d = C - 10$

Answer

$d = \frac{C}{5} + 10$

Answer

$d = 5(C - 10)$

Answer

$d = \frac{C - 10}{5}$

Question 5

A water company turns a meter reading into a bill using $B = \frac{u}{40} + 12$, where $B$ is the bill in dollars and $u$ is the number of units used. Which expression gives $u$ in terms of $B$?

Answer

$u = \frac{B - 12}{40}$

Answer

$u = 40(B - 12)$

Answer

$u = 40B - 12$

Answer

$u = \frac{B}{40} - 12$

Question 6

A meter reading $M$ is given by $M = rt$, where $r$ is the rate and $t$ is the time. Which equation gives $t$ in terms of $M$ and $r$?

Answer

$t = \frac{M}{r}$

Answer

$t = \frac{r}{M}$

Answer

$t = M - r$

Answer

$t = rM$