+0

# help please

0
30
2
+766

find the slope 2=-1/2(-3)+b

owlface13  Nov 15, 2017
Sort:

### 2+0 Answers

#1
+634
+3

I'm going to assume that there is an original equation of y=(-1/2)x+b with a y-value of 2 and an x-value of -3, solve for b.

$$2=-\frac{1}{2}(-3)+b$$

Multiply.

$$2=\frac{3}{2}+b$$

Subtract b from both sides.

$$\frac{4}{2}-\frac{3}{2}=b$$

$$b=\frac{1}{2}$$

Now plug back into original equation.

$$y=-\frac{1}{2}x+\frac{1}{2}$$

In a problem with mx+b format, m is the slope, or in this problem $$m=-\frac{1}{2}$$.

AdamTaurus  Nov 15, 2017
#2
+766
+2

thank you :)

owlface13  Nov 15, 2017

### 13 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details