Equation of a straight line Quiz

1. Find the gradient of the line through $(1,3)$ and $(5,11)$.

• A. $\frac12$
• B. $2$
• C. $-2$
• D. $8$

2. Which is the equation of the line with gradient $-3$ through $(2,1)$?

• A. $y=-3x+7$
• B. $y=-3x-5$
• C. $y=3x-5$
• D. $y=-3x+5$

3. Find the gradient of $5x-2y+10=0$.

• A. $-\frac52$
• B. $5$
• C. $\frac25$
• D. $\frac52$

4. A line passes through $(0,6)$ and $(4,0)$. Which is its equation in the form $ax+by+c=0$ with integer coefficients?

• A. $3x+2y-12=0$
• B. $2x+3y-12=0$
• C. $3x-2y+12=0$
• D. $2x+3y+12=0$

5. The line $2x+3y=12$ meets the $y$-axis at which point?

• A. $(6,0)$
• B. $(0,6)$
• C. $(0,4)$
• D. $(4,0)$