Question

Select which of the following functions whose graph slants UP from left to right (there is only one).

a.y=5x−10

b.y=−13x+10

c.x=7

d.y=3

Answer 1

a.
`\displaystyle y = 5x - 10`

Explanation:

d.) This is a horisontal line [ONLY a y-intercept].

c.) This is a vertical line [ONLY an x-intercept].

b.) This line has a negative rate of change [slope] WITH a y-intercept, and although this is a slanted line, it slants DOWN from left to right, so this is the incorrect slant.

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