Grade 9 Math: Linear Relations and Equations Slope-Intercept Form, Y-intercept, and X-intercept

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True
False

Which of the following is the standard form?

$$ax+by=c$$
$$y-y_1=m(x-x_1)$$
$$y=mx+b$$
none of the above

Which of the following is the point-slope form? $$y-y_1=m(x-x_1)$$

$$ax+by=c$$
$$y-y_1=m(x-x_1)$$
$$y=mx+b$$
none of the above

What is the slope in the following equation? $$y=\frac{2}{5}x-54$$

$$\frac{2}{5}$$
x
y
-54

3
x
12
-82

Simplify the following equations and find the slope: $$y=15x+3(2-x)+12$$

12
3
$$\frac{1}{2}$$
4
Simplify the following equations and find the x-intercept: $$y=3x+9x+4(x+1)+14$$
$${16}$$
$${-18}$$
$$0$$
$$\frac{-18}{16}$$