Straight Lines

Where does the line  $y=3x+4$  cross the y-axis?

• 3

• -4

• 4

• -3

Tags

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

What is the gradient of the line  $y=-2x-5$  ?

• 5

• -5

• 2

• -2

Select all the lines that have a gradient of -5?

• $y=-5x+1$

• $y=-5x-2$

• $y=5x+2$

• $y=x-5$

• $y=10-5x$

How many of these lines would go through coordinate ? $\left(1,2\right)$ ?

•  $y=-2x+4$  

•  $y=3x-5$  

•  $y=5x-3$  

•  $y=-4x+6$  

What is the equation of the line that joins coordinates  $\left(1,\ 5\right),\ \ \left(2,\ 7\right)$  and  $\left(3,\ 9\right)$  ?

•  $y=3x+2$  

•  $y=2x+3$  

•  $y=3x-2$  

•  $y=x+4$  

What is the coordinate where this line meets the y-axis?

• (0,3)

• (0,-3)

• (3,0)

• (-3,0)

Which of these answers could be the equation of this straight line?

• $\frac{3}{2}$

• -1

• 3

• $\frac{5}{3}$

What is the gradient of a horizontal line?

• 1

• -1

• 0

• undefined