The general equation of a line is:
When m is the gradient and x1 and y1 are the coordinates of the points on the line
Therefore:
Hey there!
Let's plug these values into the formula.
1/2(7(4))
1/2(28)
14
Therefore, our area would be 14 sq cm.
I hope this helps!
Answer:
x = 3,7
Step-by-step explanation:
x² - 10x + 21 = 0
x² - 7x - 3x + 21 = 0
x(x - 7) - 3(x - 7) = 0
(x - 3)(x - 7) = 0
x = 3, 7
Means the graph cuts the x-axis at 3 and 7
Answer:
x=12
Step-by-step explanation:
because they are proportional, the side should be 100 so you just solve from that equation for 100.
Answer:
(1) 2 (2) (-1/2,0) (3) (0,1)
Step-by-step explanation:
The slope of the line is the number times x. This equation is y=mx+b, where m is the slope and b is the y-intercept. In this case, m is 2, so we have our slope. The y-intercept is easy, as we already know it to be (0,1). The x-intercept is the point where the line hits x when y=0. To solve for the x-intercept, we set y to 0 and solve. We have 0=2x+1. First, we subtract 1 from both sides and get -1=2x. Next, to get x by itself, divide both sides by 2. Now we have -1/2=x. Now we have our x coordinate for our x-intercept. Because of this, we get (-1/2,0) as our x-intercept.
